house republicans have just three weeks to find a compromise o stop automatic tax hikes and spending cuts. and both sides say they're ready to . cbs reporter danielle nottim on the "sacred cow" that mit be key to the solution. suggested lead: the pres >>> now at 6:30, president obama hits the road to sell his solution for avoiding the fiscal cliff. the president and the house republicans have just three weeks to find a compromise to stop automatic tax hikes and spending cuts, and both sides say they are ready to talk. cbs 5's danielle nottingham on what might be the key to the solution. >> president obama's public campaign to steer clear of the fiscal cliff took him to a diesel engine planted detroit. >> congress doesn't act soon, meaning the next few weeks, starting on january first, everybody's going to see their income taxes gop. >> private face to face talks were revised this weekend when house speaker john boehner went over to the white house. neither side is releasing details about the conversation, but taxes are still the big sticking point. >> i'm not going to have a situation whe